Injector



ii. ieee?.

GEORGE B. SNODGRASS, OF OKLAHOMA CITY, OKLAHOMA.

` iNJnc'roR.

Application filed May 23,

To ufl 'zo/wm, may concern:

lie it known 'that Grenen B. Sivonoiuiss, a. citizen ot the UnitedlStates, residing at Oklahoma City, in the county oit Oklahoma and Stateot klahonia,'liave invented eertain new and useful Improvements inInjectors, ol" which the following isa specifi'ication. Y y

rFliis invention relates to improvements in injectors. Y y f V iinobject ot the invention resides in providing an injector having a pumpcylinder, mounting a manually operable piston lor drawing water in aninlet and forcing the same out et afsiiitable valve outlet into anannular compression chamber with which communicates a suitable hose forprojecting liquid thereirom under pressure, the annular compressioncliainbeibeing adapted to have a quantity ot air therein, which is coninprcssed'by the pumping` oi the water from thercylinder, in order tomaintain a. constant iiow from said hose nozzle.

,another object et the invention resides in providing an injector havinga pump cylinder and compression chamber formed in concentric relation tothe cylinder, .and wherein said parts are formed incooperat'- ingsections adapted to provide readyV access to both the pump chamber andthe conipression cylinder, in order that the parts may be repaired andcleaned.

The invention includes other objects and .improvements in the details ofconstruction and arrangement oit the parts, which are more particularlypointed out in the -following description and claims, directed to .thepreferred torni ot the invention, it being understood, however, thatvarious changes in the details ot construction and formation of theseparts may be made within the scope of the invention as described andclaimed.

In the d awing, the figure illustratesa vertical sectional View, throughthe injector, constructed according to the invention.

The base portion of the injector is indicated at 1, which is formed witha recess 2, having the lower end of semi-spherical 'it-erin, asindicated at 8, for receiving` a ball valve 4, adapted to normally seatover the opening 5, forming an inlet Alor fluid from the lower end etsaid body, said ball l forming the inlet valve for permitting the inletof water to the recess 2, and preventing a back flow through the inletopening 5. The botieafi. sei-iai up. 715,3?4.

tom et the base portion 1 is vformed with a plurality et radiallyextending grooves 6,

so that when the base is seated in a bucket, pan or the like, fluid mayflow through said grooves into the inlet opening 5, and recess 2. Theupper end of the base portion 1 is provided with an annular bowl shapedprojecting flange 7, which is screw threaded,

at the upper 'tree edge thereof as indicated at 8, tor receiving thescrew threaded flange 9, on the co-operating annular projection A10,`

from the pump cylinder 11, which is of cy-- lindrical term, asindicated. The lower end ot the pump cylinder-is provided with screwthreads for threaded cooperation with the upper end of the recesses 2 asindicated at 12, the screw tlirea'ded connection 8 and 12 serving tomount the sections oi the injector in assembled relation.

rlhe cylinder 11 is provided. with an intei-nal flange 13, adjacent thelower end,

thereof', to provide a seat for one 'end ot the coil springll, which isnormally eX- pansible `tor removing the piston 15 to the upper end otthe cylinder as shown in the drawing, the piston rod 16 mounting saidpiston being slidably extended through the cap 17, sci-eiT threaded onthe upper open end of the cylinder 11, and formed with a plurality 'oitopenings 18, registering with corresponding openings in the upper endsof the cylinders to permit the intake and eX- haust of airabove thesection, in the reciprocat-ion thereof. The upper ends o't the pis-` theannular projections 7 and 10, on the base and cylinder respectively. Asuitable valve 23 is mounted on the cylinder 11V for permitting theoutlet of fluid from the cylinder, but preventing a back flow into thesame.

The annular projecting ilange 10 is formed at 2li with a boss ofannularforin, having a threaded opening for receiving a curved pipesection ,25, which extends within the chamber 99 and to a point belowthe horizontal plane of the outlet 2l, while the outer end of the boss2li receives a flexible pipe connection 26, provided at the free endwith a nozzle. 2T, so that liquid pumped into the chamber 22 may beforced outwardly of said nozzle for projecting in a stream undersubstantial pressure.

F rom the foregoing description, it should be readily appreciated that asimple and convenient form of injector has been provided, which may beplaced in a bucket or pan of water or the like, and upon the manual ltwill also be noted that the main structure of the injector is includedin a pair ol cooperating sections, which may be easily asl seinbled ordisassembled to permit cleaning and repair of the parts in an obviousmanner.

lVhat is claimed is: l'. An injector comprising a base meniber formedwith a recess, and an annular projecting'flange, 'said base also havinga valved inlet providing communication with the recess, a cylinderhaving an annular pron j ecting flange, said cylinder and projectingange thereon being adapted forrcoopera.- tion with the recess in thebase and the flange ot' the base member, to provide an asipsoos sembledinjector unit, said cylinder having a valved outletcommunicating withthe compression chamber formed by the cooperation of the flanges on thecylinder and the base, a hose communicating with said compressionchamber, and having a nozzle at the free end thereof, and a pistonreciprocable in said cylinder, adapted to circulate fluid into thecompression chamber and outwardly of said hose and nozzle. c

2. An injector, comprising a base portion having a recess formedtherein, an inlet opening communicating with said recess, and an annularbowl shaped iiange projecting upwardly from the upper end thereof,

a cylinder screw threaded at the nwer end for cooperation with the bodyand communicating with the recess thereof, said cylinder beingv formedwith an annular projecting Vflange having the free edge thereof' adaptedfor threaded. cooperation withy the free edge of said bowl shaped flangeon the base portion, an outlet opening formed .in the cylindercommunicating with the chain-` ber formed by said flanges, a pistonreciprocablc in said cylinder, a pipe mounted in the flange on thecylinder, having the lower end terminating below the outlet openingtherein, in the compression chamber, a hose connection communicating,with said pipe,

and resilient means for normally ietaininfY e the piston in the upperend of the cylinder?,

whereby manual reciprocation of said piston will serve to draw fluidinwardly ofl the cylinder through said inlet opening to force the sameoutwardly into said compression chamber, for a subsequent projectionoutwardly of said hose.

In testimony whereof I allix my signature.

GEORGE B. sNoDGRAss.

